Icebergs and otters

Icebergs came into the bay like cool blue frigates
The plush green subtropical coast palm trees looking on
calling out to the icebergs calling them into land
A beautiful compact mansion tucked into the hill also looking out

A stout brown brick two towered beast of a building
Half concealed by the tall beachside evergreens
was poking out to see icebergs in the warm bay
Something stirred within it's breaches

A dolphin on the stairwell
hunting jellyfish in the waterhole
Shamefully caught in the act
The sea mammal flapped and flipped back down stairs

Upstairs another water hole where a giant sea slug was emerging
It's face as proud as father's at the birth of his first son
They would all have to make do in the waterholes though
As a thousand anxious nuns led by a bishop stormed the building

Desperate men were trying to escape from the mansion
They planted c4 explosives and used terribly destructive weapons
The pursuers and the mansion unharmed and undamaged
And the icebergs hadn't melted not a drop